print("hello" + "world")  # print("helloworld")
print(100 + 200)  # print(300)
# sep: 设置元素与元素之间的分隔符，默认是空格
# end: 设置print语句的结束符，默认是\n换行
print("hello",100,1.23,sep="---",end="...\n")
print("you","are","my","baby","boy",sep="!!")